If this is paid by insurance, you may rest assured that unless it is a minor amount, the insurance carrier will insist on details and the rental outfit knows that what different companies require so it either provides that or settles. You, as the consumer are off the hook and not party to this back office stuff.

If you are not insured, you are in a pickle. You ultimately have the immediate upper hand through chargeback, but those are not often successful and some companies place customers who use the process on their Do Not Rent list.

If you are on the hook and regularly (hopefully not too regularly !) do business with a high-end auto repair shop or dealer, ask what the repair ought to cost. A photo is not dispositive, but you may be surprised at what spare parts for some vehicles cost, especially if they require paint matching and other coatings.